<template>
  <div>
    <!-- 顶栏容器 -->
    <el-header>
      <el-menu
        :default-active="activeIndex"
        class="el-menu-demo"
        mode="horizontal"
        active-text-color="#409eff"
        router
      >
        <div class="logo">
          <router-link to="/">
            <img src="@/assets/imgs/logo2.png" alt />
          </router-link>
        </div>
        <el-menu-item index="/">首页</el-menu-item>
        <el-menu-item index="/goods">全部商品</el-menu-item>
        <el-menu-item index="/about">关于我们</el-menu-item>

        <div class="so">
          <el-input placeholder="请输入搜索内容" v-model="search">
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="searchClick"
            ></el-button>
          </el-input>
        </div>
      </el-menu>
    </el-header>
    <!-- 顶栏容器END -->

    <div class="table">
      <el-table
        :data="tableData"
        stripe
        @selection-change="handleSelectionChange"
      >
        <el-table-column
          type="selection"
          width="55"
          align="center"
        ></el-table-column>
        <el-table-column
          prop="id"
          label="序号"
          width="80"
          align="center"
          sortable
        ></el-table-column>
        <el-table-column
          prop="title"
          label="标题"
          show-overflow-tooltip
        ></el-table-column>
        <el-table-column
          prop="content"
          label="内容"
          show-overflow-tooltip
        ></el-table-column>
        <el-table-column prop="time" label="创建时间"></el-table-column>
        <el-table-column prop="user" label="创建人"></el-table-column>

        <el-table-column label="操作" width="180" align="center">
          <template v-slot="scope">
            <el-button
              plain
              type="primary"
              @click="handleEdit(scope.row)"
              size="mini"
              >编辑</el-button
            >
            <el-button
              plain
              type="danger"
              size="mini"
              @click="del(scope.row.id)"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>

      <div class="pagination">
        <el-pagination
          background
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[5, 10, 20]"
          :page-size="pageSize"
          layout="total, prev, pager, next"
          :total="total"
        >
        </el-pagination>
      </div>
    </div>

    <el-dialog
      title="信息"
      :visible.sync="fromVisible"
      width="40%"
      :close-on-click-modal="false"
      destroy-on-close
    >
      <el-form
        label-width="100px"
        style="padding-right: 50px"
        :model="form"
        :rules="rules"
        ref="formRef"
      >
        <el-form-item prop="title" label="标题">
          <el-input v-model="form.title" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item prop="content" label="内容">
          <el-input
            type="textarea"
            :rows="5"
            v-model="form.content"
            autocomplete="off"
          ></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="fromVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "Goods",
  data() {
    return {
      tableData: [], // 所有的数据
      pageNum: 1, // 当前的页码
      pageSize: 10, // 每页显示的个数
      total: 0,
      title: null,
      fromVisible: false,
      form: {},
      user: JSON.parse(localStorage.getItem("xm-user") || "{}"),
      rules: {
        title: [{ required: true, message: "请输入标题", trigger: "blur" }],
        content: [{ required: true, message: "请输入内容", trigger: "blur" }],
      },
      ids: [],
    };
  },
  created() {
    this.load(1);
  },
  methods: {
    handleAdd() {
      // 新增数据
      this.form = {}; // 新增数据的时候清空数据
      this.fromVisible = true; // 打开弹窗
    },
    handleEdit(row) {
      // 编辑数据
      this.form = JSON.parse(JSON.stringify(row)); // 给form对象赋值  注意要深拷贝数据
      this.fromVisible = true; // 打开弹窗
    },
    save() {
      // 保存按钮触发的逻辑  它会触发新增或者更新
      this.$refs.formRef.validate((valid) => {
        if (valid) {
          this.$request({
            url: this.form.id ? "/goods/update" : "/goods/add",
            method: this.form.id ? "PUT" : "POST",
            data: this.form,
          }).then((res) => {
            if (res.code === "200") {
              // 表示成功保存
              this.$message.success("保存成功");
              this.load(1);
              this.fromVisible = false;
            } else {
              this.$message.error(res.msg); // 弹出错误的信息
            }
          });
        }
      });
    },
    del(id) {
      // 单个删除
      this.$confirm("您确定删除吗？", "确认删除", { type: "warning" })
        .then((response) => {
          this.$request.delete("/goods/delete/" + id).then((res) => {
            if (res.code === "200") {
              // 表示操作成功
              this.$message.success("操作成功");
              this.load(1);
            } else {
              this.$message.error(res.msg); // 弹出错误的信息
            }
          });
        })
        .catch(() => {});
    },
    handleSelectionChange(rows) {
      // 当前选中的所有的行数据
      this.ids = rows.map((v) => v.id); //  [1,2]
    },
    delBatch() {
      // 批量删除
      if (!this.ids.length) {
        this.$message.warning("请选择数据");
        return;
      }
      this.$confirm("您确定批量删除这些数据吗？", "确认删除", {
        type: "warning",
      })
        .then((response) => {
          this.$request
            .delete("/goods/delete/batch", { data: this.ids })
            .then((res) => {
              if (res.code === "200") {
                // 表示操作成功
                this.$message.success("操作成功");
                this.load(1);
              } else {
                this.$message.error(res.msg); // 弹出错误的信息
              }
            });
        })
        .catch(() => {});
    },
    load(pageNum) {
      // 分页查询
      if (pageNum) this.pageNum = pageNum;
      this.$request
        .get("/goods/selectPage", {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            title: this.title,
          },
        })
        .then((res) => {
          this.tableData = res.data?.list;
          this.total = res.data?.total;
        });
    },
    reset() {
      this.title = null;
      this.load(1);
    },
    handleCurrentChange(pageNum) {
      this.load(pageNum);
    },
  },
};
</script>

<style scoped>
</style>
